python 压缩图片

这个需要16和14ms：

      import numpy as np
      import cv2
      import time
      path='d:/1.jpg'
      for i in range(10):
       img=cv2.imread(path)
       start=time.time()
       img_encode = cv2.imencode('.jpg', img)[1]
      # imgg = cv2.imencode('.png', img)
       data_encode = np.array(img_encode)
       str_encode = data_encode.tostring()
       encode_t=time.time()-start
       nparr = np.fromstring(str_encode, np.uint8)
       img_decode = cv2.imdecode(nparr, 1)
       print('time',encode_t,time.time()-start)
  
 

这个也是13和17ms

      def b():
       path = 'd:/1.jpg'
       for i in range(10):
       start = time.time()
       img = cv2.imread(path)
       encode_t = time.time() - start
       start = time.time()
       cv
  
 

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原文链接：blog.csdn.net/jacke121/article/details/88261598